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re PR rtl-optimization/57459 (LRA inheritance bug)

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2013-06-06  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/57459
	* lra-constraints.c (update_ebb_live_info): Fix typo for operand
	type when setting live regs.

2013-06-06  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/57459
	* gcc.target/i386/pr57459.c: New test.

From-SVN: r199762
This commit is contained in:
Vladimir Makarov 2013-06-06 20:58:46 +00:00 • committed by Vladimir Makarov
parent 3597e1135e
commit d89ae27c44
4 changed files with 72 additions and 1 deletions
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6
gcc/ChangeLog
View file

@ -1,3 +1,9 @@
2013-06-06 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/57459
* lra-constraints.c (update_ebb_live_info): Fix typo for operand
type when setting live regs.
2013-06-06 Vladimir Makarov <vmakarov@redhat.com>
* config/s390/s390.opt (mlra): New option.

2
gcc/lra-constraints.c
View file

@ -4545,7 +4545,7 @@ update_ebb_live_info (rtx head, rtx tail)
bitmap_clear_bit (&live_regs, reg->regno);
/* Mark each used value as live. */
for (reg = curr_id->regs; reg != NULL; reg = reg->next)
if (reg->type == OP_IN
if (reg->type != OP_OUT
&& bitmap_bit_p (&check_only_regs, reg->regno))
bitmap_set_bit (&live_regs, reg->regno);
/* It is quite important to remove dead move insns because it

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2013-06-06 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/57459
* gcc.target/i386/pr57459.c: New test.
2013-06-06 Teresa Johnson <tejohnson@google.com>
PR c++/53743

60
gcc/testsuite/gcc.target/i386/pr57459.c Normal file
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@ -0,0 +1,60 @@
/* PR rtl-optimization/57459 */
/* { dg-do run } */
/* { dg-options "-fno-inline -O2 -minline-all-stringops -fno-omit-frame-pointer" } */
int total1[10], total2[10], total3[10], total4[10], total5[10], a[20];
int len;
void stackclean() {
void *ptr = __builtin_alloca(20000);
__builtin_memset(ptr, 0, 20000);
}
void foo(const char *s) {
int r1 = a[1];
int r2 = a[2];
int r3 = a[3];
int r4 = a[4];
int r5 = a[5];
len = __builtin_strlen(s);
if (s != 0)
return;
while (r1) {
total1[r1] = r1;
r1--;
}
while (r2) {
total2[r2] = r2;
r2--;
}
while (r3) {
total3[r3] = r3;
r3--;
}
while (r4) {
total4[r4] = r4;
r4--;
}
while (r5) {
total5[r5] = r5;
r5--;
}
}
extern void abort (void);
int main() {
stackclean();
foo("abcdefgh");
if (len != 8)
abort ();
return 0;
}